Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

There are no annotations and the description discloses no behavior: no mention of side effects, network access, data retention, errors, or what happens to the seven input parameters. The schema hints that values may be discarded, but the description itself carries none of that burden; an agent cannot anticipate the tool's behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short but this is under-specification, not efficient conciseness. It spends no words on the operation or selection criteria, so the brevity comes at the cost of usefulness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given seven optional-looking parameters, no output schema, no annotations, and sibling tools for fetching or checking statuses, this description is far from complete. An agent has no idea what arguments to supply or what response to expect.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema already describes all seven parameters, so schema description coverage is high and the baseline is 3. The description itself adds no parameter meaning, but it also does not need to compensate because the schema is complete.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description is essentially a noun phrase: 'Short catalog of common HTTP status codes' restates the tool name without a verb or operation. It does not say whether the tool returns a list, looks up a code, or validates something, and it fails to distinguish status-catalog from siblings like fetch-status.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The one-line description gives no when-to-use or not-to-use guidance. There is no mention of alternatives such as fetch-status, no exclusions, and no context for when this catalog should be preferred.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.